POLYURETHANE FOAM, BATTERY OR ELECTRIC DEVICE, AND METHOD FOR PRODUCING POLYURETHANE FOAM
POLYURETHANE FOAM, BATTERY OR ELECTRIC DEVICE, AND METHOD FOR PRODUCING POLYURETHANE FOAM
[Summary] To provide a polyurethane foam excellent in flame retardancy, while having high density. [Solution] In the present technology, first, a polyurethane foam containing an inorganic phosphoric acid compound and expanded graphite and having a density of 150 kg/mor more is provided. The thickness of the polyurethane foam according to the present technology can be 10 mm or less. The polyurethane foam according to the present technology can be used in batteries or electric devices. The polyurethane foam according to the present technology can be produced by a polyurethane foam production method including a step of mixing a polyol, an isocyanate, an inorganic phosphoric acid compound, expanded graphite, and a gas.